Average Rainfall for Hawaii in April

The tables below give monthly averages for rainfall during April at cities, towns, resorts, parks and beaches in Hawaii.

Each place has a total for the amount of precipitation it usually receives this month. Most sites also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The rainfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

Hawaii Big Island

Places with weather information on Hawaii's Big Island include Kailua Kona and Opihihale in Kona District on the east coast. Naalehu is at the island's south end, while Puukohola Heiau and Upolu Point are in the Kohala region at the north end. Plus there are rainfall data from two stations high on the slopes of mountains: the Hawaii Volcanoes Park Visitor Center at 3,970 feet (1,210 metres) and the Mauna Loa Slope Observatory at 11,152 feet (3,399 metres) elevation.

Average April rainfall

Days

Place

Inches

Milli­metres

26

Hawaii Volcanoes Park

9.5

241

25

Hilo

11.5

293

–

Kailua Kona

1.4

35

23

Kapoho Beach

6.3

160

–

Mauna Loa Observatory

2.0

50

–

Naalehu

3.2

81

13

Opihihale

2.6

67

3

Puukohola Heiau

0.7

17

17

Upolu Point

2.5

64

Kauai

Average monthly precipitation in April

Days

Place

Inches

Milli­metres

21

Kilauea

4.8

121

17

Lihue

2.3

57

8

Makaweli

1.1

29

3

Mana

0.6

14

24

Princeville Ranch

6.2

157

4

Waimea

0.9

22

Lanai

April averages for total rainfall

Days

Place

Inches

Milli­metres

4

Lanai Airport

0.9

22

–

Lanai City

2.0

51

Maui

Precipitation information for Maui includes Kapalua and Puukolii in West Maui, along with Hana and Ohe'o Gulch Pools at the island's east end. The weather station in Haleakala National Park is located 6,959 feet (2,121 metres) up the mountain.